3D-printed wheelchair gives adorable puppy the legs he wasn't born with

He may be called Tumbles but he won't be tumbling any more if his new 3D-printed wheelchair lives up to expectations.

The 6-week old terrier-beagle cross was taken to an animal shelter in Ohio after he was born the handicapped runt of the litter and unable to feed from his mother properly.

"He's a little sweetheart and doesn't act as if he has any limitations," Friends of the Shelter Dogs rescue co-ordinator Angela Marx told CBS News. "Tumbles was relinquished to us and we placed him with an experienced puppy foster. In the past few weeks he has become strong and is thriving."